Search Engine Optimization (SEO) is a method which helps search engines discover and grade your site higher than the millions of other sites in reply to a search query. SEO thus facilitate you get traffic from search engines. Whenever you type a query in SEO and strike enter, you get no. of results. We normally visit the link on top of the list as that is perceived as more relevant to the query. You might have ever wondered some websites rank better than the others then you must know that it is because of a authoritative web marketing procedure called SEO.